SwissNeutronics AG - Bruehlstrasse 28 - CH-5313 Klingnau - Switzerland - phone: +4156 245 02 02 - tech@swissneutronics.ch

Neutron guide systems at reactor-based neutron sources

CG2B neutron guide system - ANSTO (2017)

The Australian Nuclear Science and Technology Organization (ANSTO) extended the neutron guide CG2B into the neutron guide hall in order to deliver neutrons to the time-of-flight reflectometer SPATZ and eventually to two additional instruments, which will be defined at later stage. The preceding neutron guide was already delivered and installed by SwissNeutronics in 2012. SwissNeutronics was awarded the contract for the guide extension based on the same technical concept comprising neutron guides made from Borkron glass and vacuum casings.

Scope of delivery out of pile: neutron guides with vacuumcasing and mechanical supports CG2b

  • Type:curved neutron guides with vacuum casings
    Path/profile:curved vertical / parallel
     straight / parallel
    Cross-sections:30 mm x 160 mm / 30 mm x 50 mm
    Length:≈ 31.5 m
    Coatings:Ni/Ti, m=1 / 2 / 2.5 / 3
    Substrates:S-BSL7 (Borkron)

CG2a/b neutron guide system - BRAGG @ ANSTO (2012)

The scope of the project was to add two more guides to the cold neutron guide system in order to provide neutrons to several new instruments in the neutron guide hall. For this purpose, the complete in-pile assembly was replaced including guides, plugs, cassettes, etc. The new CG2 guide branches into two sub-beams CG2A and CG2B. SwissNeutronics engineered, designed, fabricated, tested and installed all the equipment.

Scope of delivery inpile: neutron guides and massive steel enclosure CG1 / CG2a / CG2b / CG3

Scope of delivery out of pile: neutron guides with vacuum casing and mechanical supports CG2a / CG2b

  • Type:

     

    in-pile and out-of-pile guide system (incl. split guides)

    with mechanical equipment

    Path/profile:
     CG1:
    CG2a:
    CG2b:
    CG3:    		straight / parallel
    curved vertical / parallel
    curved vertical / parallel
    straight / parallel
    Cross-sections:
     CG1:
    CG2a:
    CG2b:
    CG3:    		50 mm x 200 mm
    40 mm x 100 mm
    50 mm x 160 mm
    50 mm x 200 mm
    Length:
    CG1:
    CG2a:
    CG2b:
    CG3    		≈ 3.5 m
    ≈ 28 m
    ≈ 23 m
    ≈ 3.5 m
    Coatings:Ni/Ti, m=2 / 2.5 / 3
    Substrates:Floatglass / N-BK7 (Borkron)

 

Customer feedback (10-Feb-2013):

As you know, the CG2 guide installation is now complete and I just wanted to let you know that ANSTO is 100% happy with how the installation was carried out by Dominik and Alexander. It was really impressive to see the laser tracker based installation work! Both Dominik and Alexander showed great dedication to their work. It is a great pleasure to work with this kind of people! Thanks also to the other staff at SwissNeutronics who contributed to the CG2 Project!

Neutron guide system - NL1-3 @ HZB (2010)

In 2009 SwissNeutronics was awarded the contract the major part of neutron guides for the refurbishment of the HZB NL1-3 guide system comprising in-pile, primary shutter and out-of-pile neutron guides. After an extensive design phase, in which SwissNeutronics took the leadership for management of interfaces, conceptual and final designs, guides were manufactured from float glass, Borkron glass and Borofloat glass dependent on the distance from the moderator. The guides designated for beam transport were mainly coated with m=3 supermirror, but focusing section with elliptic, truly curved profile utilize supermirror up to m=5. Finally all guides were installed. In particular for the initial sections (in-pile, etc.) a close collaboration between HZB and SwissNeutronics allowed to manage all the delicate requirements for these sections.

Scope of delivery inpile: neutron guides NL1a / NL1b / NL2new / NL2old / NL3

Scope of delivery out of pile: neutron guides (vacuum sealed) and neutron guides with vacuumcasing NL1a / NL1b / NL2new / NL2old

  • Type:

     

    in-pile and out-of-pile guide system

    with mechanical equipment

    Path/profile:
     NL1a:
    NL1b:
    NL2new:
    NL2old:
    NL3:    		straight + curved / parallel
    straight + curved / parallel
    straight + curved / parallel
    straight + curved / parallel
    straight / parallel
    Cross-sections:
     NL1a:
    NL1b:
    NL2new:
    NL2old:
    NL3:    		30 mm x 125 mm
    60 mm x 125 mm
    60 mm x 125 mm
    60 mm x 125 mm
    60 mm x 125 mm
    Length:≈ 62 m
    Coatings:Ni/Ti, m=1.5 / 3
    Substrates:Floatglass / Borofloat / N-BK7 (Borkron)

Neutron guide system - HANARO @ KAERI (2008)

Scope of delivery inpile: neutron guides and massive steel enclosure CG1 / CG2 / CG3 / CG4 /CG5

Scope of delivery out of pile: neutron guides (vacuum sealed) and mechanical support (CG1 / CG2a / CG2b / CG3 / CG4 / CG5)

  • Type:

     

    in-pile and out-of-pile guide system

    with mechanical equipment

    Path/profile:
     CG1:
    CG2:
    CG3:
    CG4:
    CG5:    		straight + curved / parallel
    straight + curved / parallel
    straight + curved / parallel
    straight + curved / parallel
    straight + curved / parallel
    Cross-sections:
     CG1:
    CG2:

    CG3:
    CG4:

    CG5:    		20 mm x 150 mm
    50 mm x 150 mm

    30 mm x 150 mm
    50 mm x 150 mm

    50 mm x 150 mm
    -> CG2a 50 mm x 50 mm
    -> CG2b 50 mm x 95 mm

    -> CG4a 50 mm x 50 mm
    -> CG4b 50 mm x 95 mm

    Length:≈ 21.5 m (total length)
    Coating:Ni/Ti, m=2
    Substrates:Floatglass / Borofloat